| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1-2 hours | 459 |
25.8%
|
| 2 | 3-4 hours | 104 |
5.8%
|
| 3 | 5-6 hours | 15 |
0.8%
|
| 4 | 6 hour or more | 1 |
0.1%
|
| 5 | Less than an hour | 659 |
37.1%
|
| Missing value | 540 |
30.4%
|